Plumbers and Gasfitters' Employees Union of Australia v John Holland Constructions Pty Limited

The applicant, the Plumbers and Gasfitters' Employees Union of Australia, sought special leave to appeal to the High Court of Australia. The dispute concerned the sufficiency of certain court orders to sustain convictions for contempt. The respondents were John Holland Constructions Pty Limited and several other construction companies. The orders in question, made under section 45D of the *Trade Practices Act*, were directed at the Union, its servants, and agents, restraining them from maintaining, giving effect to, or enforcing any ban on the provision of goods or services to a particular subcontractor at a specific building site.

The central legal issue before the High Court was whether the description of the ban in the court orders was sufficiently specific to support findings of contempt. The Union argued that the term "any ban" was too general and lacked the necessary specificity to sustain convictions, particularly in light of the principles discussed in *Australian Consolidated Press Ltd v Morgan*. This case established that a party should not be committed for contempt based on an undertaking that is open to two possible constructions.

The Court considered the wording of the order, which restrained the Union from enforcing "any ban hitherto imposed on the provision of goods or services" in relation to a particular subcontractor and site. The Union contended that this description was vague and did not clearly define the prohibited conduct. The Court's reasoning, as indicated by the submissions, would likely revolve around the interpretation of the undertaking given by the Union and whether it was sufficiently precise to avoid ambiguity, drawing on the precedent set in *Australian Consolidated Press Ltd v Morgan* regarding the clarity required for contempt proceedings.